======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '254'
                                          'artist'  'Lars Alsing'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Spirit'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['chillout', 'ambient', 'electronic', 'experimental', 'saxophone']"
                                     'discogstags'  "['new age', 'electronic', 'art rock', 'downtempo', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '120.113'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TBPM' (BPM (beats per minute))                     '120.113'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Spirit'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lars Alsing'
'TPE2' (Band/orchestra/accompaniment)               'Lars Alsing'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['new age', 'electronic', 'art rock', 'downtempo', 'rock']
'TXXX:lastfmtags'                                   ['chillout', 'ambient', 'electronic', 'experimental', 'saxophone']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+9.87 dB'
'TXXX:replaygain_track_peak'                        '0.251834'

========================== row from database ==========================
                                              'id'  1491643
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Lars Alsing - Spirit [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  254
                                           'genre'  electronic-unsorted
                                        'filesize'  6104165
                                           'mtime'  1620592429
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch [] electronic unsorted
                                      'tag_artist'  Lars Alsing
                                     'tag_release'  None
                                       'tag_title'  Spirit
                                             'bpm'  120.113
                                    'search_title'  'spirit':1
                                   'search_artist'  'alsing':2 'lars':1
                                  'search_release'  
                                     'search_rest'  '00dutch':4 '00mid':1 'electronic':5 'europe':3 'north':2 'unsorted':6
                                    'search_combo'  '00dutch':7 '00mid':4 'alsing':3B 'electronic':8 'europe':6 'lars':2B 'north':5 'spirit':1A 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['chillout', 'ambient', 'electronic', 'experimental', 'saxophone']
                                        'tag_date'  2008
                                     'discogstags'  ['new age', 'electronic', 'art rock', 'downtempo', 'rock']

============================== file details ==============================
                                           'mtime'  1620592428.8680687  (2021-05-09 22:33:48)
                             'size'  6104165